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At night an underwater scuba diver aims his flashlight beam toward the surface at an angle of 45 degrees with?

January 2, 2010 | By Admin In Physics |
scuba
Michael B asked:


At night an underwater scuba diver aims his flashlight beam toward the surface at an angle of 45 degrees with the normal. Upon emerging, the beam angle will be?

a. less than 45 degrees.
b. 45 degrees.
c. more than 45 degrees.
d. impossible to predict.

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